Qiang Song, Liang Wang, Xiaoyin Zhang, Yan Liu, Jing Zhang, Xiangfeng Kong. Research Progress of Optical Fiber Sensors Based on Novel Fluorescent Materials: Dissolved Oxygen, pH, and Carbon Dioxide[J]. Laser & Optoelectronics Progress, 2023, 60(17): 1700004
- Laser & Optoelectronics Progress
- Vol. 60, Issue 17, 1700004 (2023)
Fig. 1. Schematic diagram of fluorescence excitation
Fig. 2. Basic structure and working principle of fluorescent optical fiber sensing system
![Detection principle of dissolved oxygen optical fiber sensor[16].(a) Schematic diagram of evanescent wave generation; (b) schematic diagram of dissolved oxygen detection process; (c) schematic diagram of instrumental setup and flow cell design](/Images/icon/loading.gif){kind=icon}
Fig. 3. Detection principle of dissolved oxygen optical fiber sensor[16].(a) Schematic diagram of evanescent wave generation; (b) schematic diagram of dissolved oxygen detection process; (c) schematic diagram of instrumental setup and flow cell design
Fig. 4. Schematic diagram of luminescence process of lanthanide metal ions[26]
Fig. 5. Crystal structures[27].(a) Crystal structure of EuNDC; (b) tetrahedral crystal structure; (c) octahedral crystal structure
Fig. 6. Upper: pH responsive DAOTA dyes 1a and 1b in protonated form and reference DMQA dye 2; bottom: with light emitting diode (LED) light source, optical fiber connector, photodiode/sensor point and optical fiber spectrometer detector[40]
Fig. 7. Crystal structure and PXRD spectra[44].(a) Crystal structure of Tb-MOF; (b) PXRD patterns of as-synthesized Eu0.034Tb0.966-NMOF and Eu0.034Tb0.966-NMOF soaked in water with pH values of 3.00 and 11.00, and simulated Tb-MOF from X-ray single structure
Fig. 8. Diagram of preparation process of CDs@UiO-66 (OH)2 using solvent-free method［47］
Fig. 9. Spatial topology and fluorescence emission spectra[48].(a) Spatial topological structure of Zr-TCPBP; (b) fluorescence emission spectra of Zr-TCPBP in aqueous solution with pH of 1.10-6.70
Fig. 10. Schematic diagram of pH detection with LMOFl and γ-Fe2O3@LMOF1[49]
Fig. 11. Schematic diagram of pH response of MOF/PC materials[50]
Fig. 12. Scheme for synthesis of UIO-66-ONa by Schiff Base reaction[63］
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Table 1. Summary of fluorescent dissolved oxygen optical fiber sensing research
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Table 2. Summary of fluorescent pH optical fiber sensing research
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Table 3. Summary of fluorescent carbon dioxide optical fiber sensing research
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